The contrast between the visuals/mechanics and the audio made me burst out laughing at first, although I'm not sure if this was the intended effect.
However as I continued, I feel like the tone took on a life of it's own, and really felt unique.
Like the feeling you might have as a child, walking past drunk adults in the night with blaring music in the distance.
Or being in an unfamiliar place, with strange sounds and smells.
It's a very bizarre clash, and I think it's the games strongest point.
This is a great example of how audio completely changes the experience of the user. If you had traditionally twee happy music, it would have a completely different flavour.